Vacuum-cleaner.



W. H. KELLER.

VACUUM CLEANER.

APPLicATloN FILED FEB. 5, |909.

1,143,833. Patented une v2.2, 1915.

n y 2 SHEETS-SHEET l. 65M@ j n fifa/11111.11. 111/ f W. H. KELLER.

VACUUM CLEANER. APPLICATIVONHLED FEB. 5.1909.

Patented 1.1.1622, .1915;A

2 y SHEETS-SHEET 2.

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wrrNEssEs: A 6@ l i 'My invention therefore relates to the 0111 UNITEDSTATES ,PATENT Omron wrnnram n. manna, or PHILADELPHIA, temmsirnvsms,Assioma, alpinen: ASSIGNMENTS, ro sAN'ro mmcmcrumnecomraivy,or'rnnnnnnrnm,m1v

mvsma, a; conoaarron or nnnawenn.

" VACUUM- CLEANER To @ZZ lwhom z't may concern: t

Be it known that I, WnmrAM H. KELLER, of -Philadelphia5 in the county ofPhila- ,delpbia and. State of Pennsylvania, have .in- 1 5y ventedcertain new and. useful Improvements in Vacuum-Cleaners, whereof thefollowing is aspeciication, reference being had l xtotheaccompanyingdrawin s.

My invention has for its o ject the crea-A 10 tion of steadycontinuouspowerul suction in a vacuum cleaner, as well asthe producy,tion. of a compact andportable apparatus =qwith a.lnfurrimumy capacityin a minimum y Space; j 15` In vacuum cleaners it has hitherto. been fcustomary to employ suction produced by either reciprocatingpumps orbellows.l This Ez-isobjectionable because the intermittent or pulsatingcharacter of the suctionproduced, 2o tends to prevent the perfectoperation of (lx the air. filtering layer, the pulsation atits momentvof highest tension'tending to draw I dust through the filteringmaterial which 31.-" should be retained. It is also objectionable 25 asrequiring an equalization chamberto surround'the filter 1n order todistribute the suction'al strain as evenly as possible.

f f bination with the filtering chamberof a ovacuume cleaner, of; meansforf roducingcontinuous andr steady suction t ereupon.

' ordi-nary fan blower does not create suction of suiliciont power-to-ser-ve this purpose, but, I have discovered thatby the em spioymcnt'of a rotary pump of thetype here- .g inafte'r described, the requisitecontinuous i t0-my a paratus the highestA degree of iziency myapparatus, I am able to `4o. connect the suction pumpdirectly to the11.50; is a vertical central. section of anapparatus' 2 embodying myinvention. F ig. II, is a hold- 4 zontalsection along the lineII, IL inFig, I. v

Q'im, isapartial 'lanvview ot the'cover. femmina as own.s,.ryllxuned.y

Svpecilcatioxi of Letters Patent. .l Patetietl J Y l v mutationmearebmary 5,1m. sensi lo. mu; i

' type, being contained a. 55 l casing 1, thelower rim 2,*of whichjrestsupon a base plate 3, which may' be conveniently mountedfupon rellenar.In order to facilitate access to the Yozf the lower part of. thecylinder, the lowerl rim so" of the-casing is at onesideooluiectedftofthe *base 3 by a hinge 5 wd secured on-.tlie' oppositeside by a swivel bolt 6. Theloiver part-,of the vcasing'ie furtherprovided-with anexhaustaperture v7, 1 v

Within the .lower part of the'caeing there 1s mounted upon the: haseplate, .arotary ,suction pump 10, and an electricmotor'l.

.Tzhefconstruction ofthe motor need not be here described, as it ma beof'any standard 70 type. The case 9, of

e motor is integral with theease of the rotary pump, making enl :Ixce'edlngly strong and compact construcon. The yshaft 13, of the'mctoris in axial con- 75.-

neetion with .the projectingend of a rotary drum 14, mountedeccentrcally withinl the .n l rotary pump. Within the cylindrical bodyof the pum isanaxialshaft l5, upon which are ivote 'the veins or blades.16, two in 80 1 num er, as shown, but of which any con# .venient'number may be used.' Where the blades passfthrou hthe eccentricdrum,.the latter 1s provide with slotted'sockets v17, which inclusesplit 18. The 85 eccentric drumois in contact with the inner .edge oftheylindrien body of. the pump,

at one point..1 9,.and on oppositewsidesV of this point are the ports20,v and 21, the former. being the suction port'- andthe latter the 90exhaust port. The pump is surrounded by a'muier, containing a circuitouspassage o 22, which connects theexhaust ort with the .exhaustaperture.,v byv whic the' air is blown through the- 'motor and thence'95 Y through openings 8, in the-motor lcase in the lowerpart; ofthe l,whcne it escapes by the aperture 7 Immediately above the jmotor "andpumpthe casingk is divided by a hirizgilltalv partr- 100v tionA 30, whichis-,securcd` thereto by means 4 of rivets 31; Thesaid ypartition 30, isprovided. with a peripheral bevel32, which coacts wit n to clamp. bymeans of screws.35,the 'pack'- :105 36,'.whereby the vacuum chamber is.ren-v derediiairetight .atthis region* `The partirtonyisalso provided'i hasnnil-ar bevel 33, on the ring 34,-.

' means of screws 42. plate is to prevent "being drawn over lthe pumpl0.

Ivided with' thumb screws 58,

observation 'l means, may be made.o*.` canvas, of suiii ripheral flange51, which acts vas a seat for thev rthe ltering ba'g 5S. The cover plate55, is

aclringV ring 52,'for'1ning the edge of 'also' provided with aAperipheral flange 56,

which is forced against the ring 52, whereby the `vacuum chamber 1srendered air-tight at the top. This is accomplished by means of theswivel bolts 57, which are pivoted in lugs 54, formed on the cover 55,and are prowhich are tightened against abutting lugs 59, cast integralwith the rim 50. y

The dust laden air is drawn into the apparatus through a downwardly'inclinedv passage 60,. which enters into a circular chamber 61, formedat the center of the Vcoverplate 55. A cylindrical vertical baille tube62, extends lfrom thebot- `torn ofthe said chamber 61, nearly tothe topand terminates directly under the sight glass 63, which forms its cover.The air is drawn against the bottom of the chamber 61, by virtue of theincline of the passage .60, and after entering-is whirled about the'axial cylinder 62,-gradually rising therein, and is finally drawn overits upper edge `into the filtering bag 53. By this arrange-M mentobservations may be made from time to time through the sight glass 63,to asvzer-tain the condition of the air as it is received' into theapparatus.

A' second filtering bag 70, is suspended within the vacuum "chamber,between the first filterjbag 53, and thev perforated plate 41. Thissecond bag 7.0, is provided toI insure' perfect filtration of finerldust escaping through the bag 53,'so that the air is 4,75 entirely freefrom dust before being ex- "/ffaha usted through the pump 10.

The-bag 53, which is the primary filtering cient strength and of asuiicientlyne textureto retainfthedust. The second bag 70, y"may*be-'made of felt, which, Having a finer telx 'tu're ythan the canvas,completely purii'es` 'the'l air from any dust Ywhich may have found itsway through the vinterstices of the canvas.

. It will be .observe-d that the .connection ,between the suctionpumpand the filtering chamber is aI direct one, so that no space is wastedin providing, as has heretofore been customary, a considerable airchamber to i surround the filteringsurface. In this way )practically theentire space within the filtervingcharncer be used for the storage ofdust. lhisliswtendered possible by the con- The-unction of said 1,terminates at its top in a;

'i have described, in. my

producedl by the particular kind ofrotary i Y' pump which' I employ inmy' apparatus. `I

do not`in the present application claim the/f construction of lthispumpconsidered by itself, as it forms the subject matter of anj otherapplication filed by me under date of: January 16th,1909, SerialNumber472,571,A

but the. claims ofthe present application are specifically directed tothe employmentfof` apumpv o fthis general character in connection withvacuum cleaner -apparatus as described. I find a further advantage invthe use of a rotary suction pump, such as -I the greater cleansingparatus, due to thc steady suction produced.

ln cleaning a carpet Witha cleaner employ-V ridges are often y i duetothev intermittent character of the suction. Thisy is avoided by thesteadyyet powerful suc ing a reciprocating pump, observed on'thc cleanedsurface,

tion' produced by my pump.

Idisclaim, as not being of my invention; i

the-following subject matter: In a cleaning machine, `the combination ofa chamber ,provided with inlet and outlet ports or, open-V ings,depending receptacles having .perme' able walls arranged in the chamber,onek within but separated from ,the other, the

receptacles being so arranged that the in-y let port will discharge intothe inner receptacle, 'said outer receptacle being adapted to i bemaintained separated from said inner receptacle by the fiowfof airthrough ports.

And I also disclaim, as not being of my following subject matter:- In la cleaningmachine, the combination'of 'a chamber provided with inletand' outlet 1 l ports or openings, depending receptacles- A. havingpermeable walls arranged in the.`

chamber, one withinv but separated from the other, the receptacles beingso arranged that the inlet portwill discharge into the innerreinvention, the

ceptacle, and means for maintaining a practically uniform flow chamberand receptacle.

I also disclaim as notJ being ofrny inven-fv tion, the following sub]ectmatter: vln a def. vice ofthe character stated, a casing hav.

-ing a vacuum chamber provided with aninlet. and` an outlet, a flexibledust` separator device therein, a supporting ring deta'chf able fromsaid casingfor the upperportionl Lof said separating'` device, thelatter dependu ing from saidfring, andl means for support ing the.' sameat the bottom against move-,7, ment toward the outlet.

. I also disclaim as not being ofmy invention, the following subjectmatter :l In 'a device of the character stated, a casing hav-'-` ing avacuum chamber provided'with aneinlet and an outlet,"means forwithdrawing,

vacuum cleaner, 1n, eiiiciency' ofthe ap! of alr throughk the y l fluidthrough the 'outlet to create the tinuous `and, steady. nature of the.suction vacuum, a flexible. dust-separatingldevice l uw@ sepa-ra t ie rfrom said ring, and suonort f end of saiti cle-vice extendingthereunder. I also di.

or t-lie io'wer trans verseljv' eraini as not being of inven tion, the.oliowing subject matter: in a (ievice of the character described, aeasing having :i vacuum elniinber provieisfi 'with an inlet and outlet,@over for said easing, a dust bag support elainpeci between saiti Coverand said easing, itering clust bag carrier-l by said support andextenfling into said vacuum Chamber, an out-er filtering' dustsurrounding tire iewer portion, of

sai-ri first inentione. L

ie ns lnenendent of tiie ioizforret said L mentioned bag formaintaining; sar outer in posit-ion said parttm iittingg the inner offsaid easing, in ins i'or securing tlie partition to sairi easnig,nie-ans cooperating with sain partition for forming an arr tig/lit ointbetween the partition and the easing, a iltering inateriai arranged inthe e sing above said partition, means for olosing the top of theeasing, Closing means having an inlet opening, salti partition having anopening formed therethrough and vacuum creating means ioeaterl in theeasing below the partition and connected to said opening formed throughsaid partition..

2. A portable vacuum Cleaner comprising a supporting base, a cylindricalouter casing mounted on said base with its aXis vertical, means tordetaebably connecting said. casing to said base, a single partitionextending across said casingl intermediate its ends, said partitionfitting the inner face of said casing, means ior securing the partitionto sain"t Casing', tlie lower edge of saici partition haring a beveledportion, a ring, means for clamping said ring to saiql partition, saidring baring a bevelotl portion taping the wiveleci portion on saidpartition, a packing adapted to be engaged by said beveled portions andforeeclagainst the outer casing for making air tignt joint between thepartition and the easing, a filtering materiai arranged in the casingabove said pan tition, means for closing the top of the easing, saidclosing means having an inlet opening, said partition having an openingformed therethrough, and vacuum creating means located in thecasingvbeiow said partition and having an inlet opening registering withthe opening in said partition.4

ln' testimony whereof, l have hereunto signed my name, atPlriiaflelpbia, Pennsylvania, this tliirri day of February, 1909.

LLAM H. KELLER. iiitnesses z` JAMES H. BELL, E. L. FULLERroN.

